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Effect of temperature on gas permeation of polymer blends. I. Poly(ethylene oxide)/copolyester–polyurethane

✍ Scribed by Guo Qipeng; Xu Hechang; Ma Dezhu

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
341 KB
Volume
39
Category
Article
ISSN
0021-8995

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✦ Synopsis

The transport behavior of H,, Nz, Oz, and CO,, was studied for blends of poly(ethy1ene oxide) (PEO) with a copolyester-polyurethane (PU) at various temperatures from 20 to 80°C. It was found that there was an abrupt change in slope or discontinuity around the melting point of PEO in Arrhenius plot of the permeability vs. temperature. The relationships between the logarithm of gas permeability and blend composition were strongly dependent on the temperature and showed very different shapes at temperature below and above the melting point of PEO. The activation energy of gas permeation for the blends had different values below and above the melting temperature of PEO.

📜 SIMILAR VOLUMES

Effect of temperature on gas permeation
Effect of temperature on gas permeation of polymer blends. II. Copolyester/copolyester–polyurethane
✍ Guo Qipeng; Xu Hechang; Ma Dezhu 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 475 KB

## Abstract The transport behavior of H~2~, N~2~, CO~2~ was studied for blends of an aliphatic copolyester with a copolyester‐polyurethane (PU) at various temperatures from 20 to 80°C. It was found that there was an abrupt change in slope near the melting point of the copolyester in Arrhenius plot